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Unit 1 Assignment 1: Computer Basics Review

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Multiple-choice questions
1. C. Represents one binary digit
2. B. Megabyte
3. C. 64 bits per quadruple word
4. A. Used for short-term memory
    E. Is installed onto the motherboard
5. A. The CPU tells the RAM which address holds the data that the CPU wants to read.
6. C. Character set
7. D. The binary equivalent of decimal 123456789
8. A. An actuator arm
9. A. Keeps data in order
10. A. By reading the file system’s directory information, which is stored on the storage device

11. B. Using a magnetic charge

12. B. Used for long-term memory
      D. Connects to the CPU over a bus using a cable

13. A. Actuator arm
      C. Platters

14. A. RAM
      D. USB flash drive

15. A. Keyboard map

16. D. By closing an electrical circuit connected to the key when the key is pressed

17. B. Two dimensions: movement as two numbers: one in the direction of the X axis of an X, Y graph and the other on the Y axis.

18. C. Input of commands that control the computer

19. C. The screen is using more than 1 million pixels.
      D. 1024 is the number of items top to bottom in a grid on the screen.

20. A. Information that identifies each individual pixel on the computer display
      B. A binary code for each pixel, defining its color

List the Words Inside Acronyms

RAM: random-access memory

OS: operating system

CPU: central processing unit

KB: kilobytes

MB: megabytes

GB: gigabytes

TB: terabytes

USB: universal serial bus

HDD: hard disk drive

ODD: optical disc drive

I/O: input and output

DPI: dots per inch

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